| Metal |
Emissivity |
| Aluminum |
|
| Unoxidized |
0.02 to 0.20 |
| Oxidized |
0.2 to 0.4 |
| Brass |
|
| Polished |
0.01 |
| Burnished |
0.30 |
| Oxidized |
0.50 |
| Chromium |
0.40 |
| Copper |
|
| Polished |
0.03 |
| Roughened |
0.10 |
| Oxidized |
0.4 to 0.8 |
| Electrical Terminal Blocks |
0.60 |
| Gold |
0.10 |
| Haynes |
|
| Alloy |
0.3 to 0.8 |
| Inconel |
|
| Oxidized |
0.70 to 0.95 |
| Sandblasted |
0.3 to 0.6 |
| Electropolished |
0.15 |
| Iron |
|
| Oxidized |
0.5 to 0.9 |
| Unoxidized |
0.10 |
| Rusted |
0.5 to 0.7 |
| Molten |
0.40 |
| Iron, Wrought |
|
| Dull |
0.90 |
|
| Metal |
Emissivity |
| Lead |
|
| Polished |
0.05 |
| Rough |
0.40 |
| Oxidized |
0.2 to 0.6 |
| Magnesium |
0.05 to 0.80 |
| Mercury |
0.05 to 0.15 |
| Molybdenum |
|
| Oxidized |
0.2 to 0.6 |
| Nickel |
0.2 to 0.7 |
| Black Platinum |
0.90 |
| Silver |
0.02 |
| Steel |
|
| Cold-Rolled |
0.7 to 0.9 |
| Ground Sheet |
0.4 to 0.6 |
| Polished Sheet |
0.10 |
| Molten |
0.25 |
| Oxidized |
0.7 to 0.9 |
| Stainless |
0.1 to 0.8 |
| Tin (Unoxidized) |
0.1 to 0.3 |
| Titanium |
|
| Polished |
0.30 |
| Oxidized |
0.5 to 0.6 |
| Tungsten |
0.1 to 0.6 |
| Zinc |
|
| Oxidized |
0.10 |
| Polished |
0.05 |
| |
|
|
